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Nadya
@Nadya
May 2019
1
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Bonjour,
Quelqu'un peut m'aider j'ai fait des calculs mais étant nul g besoin de votre aide.
C pour cet après midi
Merci d'avance.
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1)
A=9x²-12x+4+3x²-9x-2x+6
a=12x²-23x+10
2)
a=(3x-2)(3x-2+x-3)
a=(3x-2)(4x-5)
3)
a=(3×1/3-2)(4×1/3-5)
a=(1-2)(4/3-5)
a=(-1)(4/3-15/3)
a=(-1)(-11/3)
a=-1×-11/3
a=11/3
4)
3x-2=0 ou 4x-5=0
3x=2 ou 4x=5
x=2/3
ou
x=5/4
1 votes
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A=9x²-12x+4+3x²-9x-2x+6
a=12x²-23x+10
2)
a=(3x-2)(3x-2+x-3)
a=(3x-2)(4x-5)
3)
a=(3×1/3-2)(4×1/3-5)
a=(1-2)(4/3-5)
a=(-1)(4/3-15/3)
a=(-1)(-11/3)
a=-1×-11/3
a=11/3
4)
3x-2=0 ou 4x-5=0
3x=2 ou 4x=5
x=2/3 ou x=5/4